Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4783 libyang security update 23 December 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libyang Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 8 Red Hat Enterprise Linux WS/Desktop 8 Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-19334 CVE-2019-19333 Original Bulletin: https://access.redhat.com/errata/RHSA-2019:4360 Comment: This advisory references vulnerabilities in products which run on platforms other than Red Hat. It is recommended that administrators running libyang check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: libyang security update Advisory ID: RHSA-2019:4360-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:4360 Issue date: 2019-12-23 CVE Names: CVE-2019-19333 CVE-2019-19334 ===================================================================== 1. Summary: An update for libyang is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64 3. Description: The libyang package provides a library for YANG data modeling language. libyang is a YANG data modelling language parser and toolkit written (and providing API) in C. The library is used e.g. in libnetconf2, Netopeer2, sysrepo and FRRouting projects. Security Fix(es): * libyang: stack-based buffer overflow in make_canonical when bits leaf type is used (CVE-2019-19333) * libyang: stack-based buffer overflow in make_canonical when identityref leaf type is used (CVE-2019-19334) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. IMPORTANT: The libyang-devel sub-package has recently been removed from the AppStream repository. If you have previously installed libyang-devel, remove it prior to applying this advisory to make the update successful. 4. Solution: If you have previously installed libyang-devel, remove it prior to applying this advisory to make the update successful. For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1779573 - CVE-2019-19333 libyang: stack-based buffer overflow in make_canonical when bits leaf type is used 1779576 - CVE-2019-19334 libyang: stack-based buffer overflow in make_canonical when identityref leaf type is used 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: libyang-0.16.105-3.el8_1.2.src.rpm aarch64: libyang-0.16.105-3.el8_1.2.aarch64.rpm libyang-cpp-debuginfo-0.16.105-3.el8_1.2.aarch64.rpm libyang-debuginfo-0.16.105-3.el8_1.2.aarch64.rpm libyang-debugsource-0.16.105-3.el8_1.2.aarch64.rpm python3-libyang-debuginfo-0.16.105-3.el8_1.2.aarch64.rpm ppc64le: libyang-0.16.105-3.el8_1.2.ppc64le.rpm libyang-cpp-debuginfo-0.16.105-3.el8_1.2.ppc64le.rpm libyang-debuginfo-0.16.105-3.el8_1.2.ppc64le.rpm libyang-debugsource-0.16.105-3.el8_1.2.ppc64le.rpm python3-libyang-debuginfo-0.16.105-3.el8_1.2.ppc64le.rpm s390x: libyang-0.16.105-3.el8_1.2.s390x.rpm libyang-cpp-debuginfo-0.16.105-3.el8_1.2.s390x.rpm libyang-debuginfo-0.16.105-3.el8_1.2.s390x.rpm libyang-debugsource-0.16.105-3.el8_1.2.s390x.rpm python3-libyang-debuginfo-0.16.105-3.el8_1.2.s390x.rpm x86_64: libyang-0.16.105-3.el8_1.2.i686.rpm libyang-0.16.105-3.el8_1.2.x86_64.rpm libyang-cpp-debuginfo-0.16.105-3.el8_1.2.i686.rpm libyang-cpp-debuginfo-0.16.105-3.el8_1.2.x86_64.rpm libyang-debuginfo-0.16.105-3.el8_1.2.i686.rpm libyang-debuginfo-0.16.105-3.el8_1.2.x86_64.rpm libyang-debugsource-0.16.105-3.el8_1.2.i686.rpm libyang-debugsource-0.16.105-3.el8_1.2.x86_64.rpm python3-libyang-debuginfo-0.16.105-3.el8_1.2.i686.rpm python3-libyang-debuginfo-0.16.105-3.el8_1.2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-19333 https://access.redhat.com/security/cve/CVE-2019-19334 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2019 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXgA7EtzjgjWX9erEAQj7KBAAjEUWsYnU3jHCJQFV8Uxwc/GqKDQBJG1z eA3NrdDTA639M9CCCRnorfgErKpmlU8qJahmyuUm2VdazfmC95K/ZOce/BdD3FxO b/aRvjRG/fmMuiFC1bbg5KGRq27ZAyIZrRCTi1bHqbuVULufZUBX2mUxd5cR4L2m /tfq86ckNeA6x9fZ9YotztOrTgJL7D4Ujxe6VE//BflFI4f7ouwQyLP556Q3vHI3 +litpxcY9yuWuKcblvC6Jm6W/7rluzVUd8d7l9/FI5bJdIinO57g6hrO3mbEUmgn YeoFfjs+HI+kWTniZqJC+CUEBhY3Z3V+dKh2eiwKAEcerh8bi1CtXkTgoomJzef6 fU1A0arfPCNApyYTWGAMenHJvbZMASbwOw4YQoioN/m5C1Y6EGFs/JVx2Cg+MGCE zTD6xGwi9Fhj2k1K5r70l/OtJpxLT3Hs5oGqlnu3BTLyIX4nNleVLgHPeScAttXf mnE+/Mebm462qg/H/MiShxqevOg+ioieRwO3Z+PnzmYUqfBYx2Jc8l4282zhhFJy hJNLU9s49TAdQgLIBoa3thPLgxeaQM+NhHpOsI6AD31JEKCPNWLZoC7hqsQeZbKs ETP0upGdGvo0xrByp0JDVu6H/FoY6UL1087TfcUQX+blTKawNRZaZB+OVqDlvM7k n2AioaFDJb4= =cgM6 - -----END PGP SIGNATURE----- - -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXgBGZ2aOgq3Tt24GAQhRoRAAmJ4Pv9UJg+tzwrC8Kccx7yw5G5qNSgNX qZtPbri7Cz7rfZYrf/QVURjgWGbOQyvHyXlzd54tN0daBMolH75nTI+usmLq90+8 qI0rcS46DlxVZ5R2OZRftJc6b4EQzzL8vlwveE/6dxtTYseRS/DuxKQnr0hIvkOK 3A7WdHlNxiel9LsZV0iMpXTxxYhZRShaeY7+HxfjNqfCkUDJGq1v7MSIZeDtwoy+ 4P1aJrY0+EghVqbrK+YUlrLlMGbfnNfBnYty0uZ68Tgt6pDoMtgXyV9HCToRBRq7 GYYQiaxr9Ufqv/i966dvYerVFWagRjGZ085k1m4AW19Ue7P9JAGTEcFO7nxrXdEx uPulMkXKe3xKBt3BwF9lGf4PKraL+xF3EjJJF4CZ6jdoB5mRsaSEeQLMKRLq03LK SUQryzPpgcw4dW197+6ACRGSwvfg97t8cPYWxhYxBpbvR0bseiL04j5vkJRBoNEn G6BU6qQFengOQ6i3p7NURTvPpxZk7LZn8/kjs0rPufjKgpFCPfEXaf9BTXiwTq9M k0ilxLr96ZlyoBMl95qGpK9/A8CYBJKkTmJYx0JOfDK36XAGEEKo2Qd+TQiupc09 npAV0Qis63910YaTIajf/bZaElBpaxq7UpqMmmaSWBIwCoTWpx7t4e0rnEjW/XTH /Gw8Mng4Iw0= =9kT1 -----END PGP SIGNATURE-----